Q58.Number of colourless lanthanoid ions among the following is ________ Eu3+, Lu3+, Nd3+, La3+, Sm3+
What This Question Tests
Tests the knowledge of electronic configurations of lanthanoid ions and their relation to color (presence of unpaired f-electrons leads to color, f0 or f14 configurations are colorless).
Concepts Tested
📚 NCERT Sections This Tests
5.16 — Draw Figure To Show The Splitting Of D Orbitals In An Octahedral Crystal Field.
Chemistry Class 11 · Chapter 5
5.16 Draw figure to show the splitting of d orbitals in an octahedral crystal field.
5.25 — Explain The Violet Colour Of The Complex [Ti(H2O)6] 3+ On The Basis Of Crystal
Chemistry Class 11 · Chapter 5
5.25 Explain the violet colour of the complex [Ti(H2O)6] 3+ on the basis of crystal field theory.
5.18 — What Is Crystal Field Splitting Energy? How Does The Magnitude Of Do Decide
Chemistry Class 11 · Chapter 5
5.18 What is crystal field splitting energy? How does the magnitude of Do decide the actual configuration of d orbitals in a coordination entity?
📋 Question Details
- Chapter
- d-block & f-block Elements
- Topic
- Lanthanoids and color
- Year
- 2024
- Shift
- 09 Apr Shift 1
- Q Number
- Q58
- Type
- Numerical
- NCERT Ref
- Class 12 Chemistry Ch 8: d-block & f-block Elements
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